body
{
    margin:0;
    padding:0;
    background:#FFFFFF;
}
#Principal
{
    width: 1000px;
    margin:0 auto;
}
#conteudo
{
    padding: 5px;
}

#topo/*Topo.*/
{
    width:100%;
    height:50px;
    margin-top: 5%;
    padding: 5px;
    background-color:transparent;
    text-align:center;
    font-family:"Times New Roman", Times, serif;
    font-size:30px;
    font-weight:bold;
    color:#000;
}
.lb/*Label*/
{
    font-family:Calibri, Arial, Sans-Serif;
    font-size:22px; 
    text-align:center;
    width:200px;
    float:left;
    margin-top: 3px;
}
.lb1/*Label*/
{
    font-family:Calibri, Arial, Sans-Serif;
    font-size:22px; 
    text-align:center;
    width:150px;
    float:left;
    margin-top: 3px;
}
.lb2/*Label*/
{
    font-family:Calibri, Arial, Sans-Serif;
    font-size:22px; 
    text-align:center;
    width:80px;
    float:left;
    margin-top: 3px;
}
.lb3/*Label*/
{
    font-family:Calibri, Arial, Sans-Serif;
    font-size:22px; 
    text-align:center;
    width:280px;
    float:left;
    margin-top: 3px;
}
.txt/*Caixa de texto*/
{
    width:200px;
    float:left;
    font-family:Calibri, Arial, Sans-Serif;
    font-size:22px;
 }
.txt1/*Caixa de texto*/
{
    width:150px;
    float:left;
    font-family:Calibri, Arial, Sans-Serif;
    font-size:22px;
 }
.txt2/*Caixa de texto*/
{
    width:80px;
    float:left;
    font-family:Calibri, Arial, Sans-Serif;
    font-size:22px;
 }
.txt3/*Caixa de texto*/
{
    width:280px;
    float:left;
    font-family:Calibri, Arial, Sans-Serif;
    font-size:22px;
 }
.bt/*Botão*/
{
    float:left;
    background:#FFFFFF; 
    padding:5px 8px 5px 8px; 
    color:#000; 
    font-family:Calibri, Arial, Sans-Serif; 
    font-size:22px; 
    letter-spacing:-1px; 
    border:1px solid #aaa; 
    text-decoration:none;
}

